Meena S. answered • 09/06/17
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12x2 +11x +2=0
12x2 +8x +3x+2=0
4x(3x+2) +1(3x+2)
(3x+2)(4x+1)
Kenneth M.
asked • 09/06/17Solve using factoring by grouping: 12x2 + 11x + 2 = 0
Solve using factoring by grouping: 12x2 + 11x + 2 = 0
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12x2 + 11x + 2 = 0
(12)(2) = 24 Find 2 numbers whose product is 24 and whose sum is 11 (8 and 3 work)
Rewrite 11x as 8x+3x and factor by grouping:
12x2 + 8x + 3x + 2 = 0
4x(3x+2) + 1(3x+2) = 0
(3x+2)(4x+1) = 0
x = -2/3 or x = -1/4
Kenneth M.
How do you come up with the 4x and 1?
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09/06/17
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Kenneth M.
09/06/17